Sia's new album, This Is Acting, features 12 songs the singer originally wrote for a bevy other artists, including Adele, Rihanna and Kanye West.

A few of these don't-call-them-could've-been tracks have trickled out since last year -- "Cheap Thrills," "Alive," "Bird Set Free" and "One Million Bullets" -- and now, we have a tease of another: "Reaper," produced and co-written by Yeezus himself.

As per Sia's tweet, the song is due to drop on Thursday. Until then, we can just bump the hypnotic 11-second beat here on loop for four-ish minutes, which is probably around how long the full track will be.

Sia and 'Ye linked up in 2015 for "Wolves," a collab with Vic Mensa that might(?) appear on Kanye's SWISH album, whenever the heck it actually drops.

The title of this new song, "Reaper," sounds fairly vicious, and it also sounds like a potential Kanye song, which makes sense given the album's theme. "Most of the songs, if not all of them, I wrote for other people, and they were rejected," Sia told Ryan Seacrest back in September. "And so they are generally are songs that are not from my perspective, and so it feels like acting."

This Is Acting, which also features songs written for Demi Lovato, Katy Perry and Shakira, is out Jan. 29.